The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 06, 2018
Filed:
Apr. 25, 2016
Applicant:
Jerry L. Atwood, Columbia, MO (US);
Inventor:
Jerry L. Atwood, Columbia, MO (US);
Assignee:
The Curators of the University of Missouri, Columbia, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 417/12 (2006.01); C07D 211/22 (2006.01);
U.S. Cl.
CPC ...
C07D 417/12 (2013.01); C07D 211/22 (2013.01);
Abstract
The present invention provides a method for physically separating the active pharmaceutical ingredient (API) from the excipients in a pharmaceutical formulation before the API is fully characterized by standard techniques. The presently disclosed method is based on making use of the difference in density of the API and that of the excipients. In the method, the API is not dissolved, nor is the crystal form of the API changed.